Re: [DML] high hydrocarbon in exhaust

[dherv10@xxxx]

Rendy, If the 02 sensor is approaching 30,000 miles, it's due to be replaced. 
Also, if you car has been running rich. The the fuel system may lean out 
after replacing it 02. Also, after replacing the o2 sensor, the Air flow 
meter may have to be adjusted to get the correct reading. I adjust by ear and 
am usually right on the money, but trying to find someone with the right 
equiptment might be a challenge. I also have Cat's in stock at a savings.You 
can see on the web site.
And , no they don't last forever. 
John hervey
http://www.specialtauto.com/engine.shtml